Length of a lawn is three times its breadth. Dinkar walked around it 5 times and covered a distance of 2 km. What is the length of the lawn in metres?
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Answer:
Step-by-step explanation:
Length = 3y (3 time the breadth)
Breadth = y
Perimeter = 2000/5=400m (1 km = 1000m)
3y + y = 400m
4y = 400m
y = 400/4
= 100m
Length = 300m
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